3 Answers

This is the anti theft system emblem,it is your fob that is the
problem,your car does not reconize it,try this lock your car door
with key,then unlock it,may need to do this a few times,should reset
antitheft,don,t use your fob only key.

The padlock is your theft deterrent system becoming active, if I recall it's been an issue with the passlock sensor in the ignition lock since the 2000's. For the CEL, you need to have it scanned to learn what the actual trouble code is. For such a new car, it is likely something covered under warranty.